Results 31 to 40 of about 1,228,906 (333)
Positive solutions for nonvariational Robin problems
Asymptotic Analysis, 2018 We study a nonlinear Robin problem driven by the p-Laplacian and with a reaction term depending on the gradient (convection term). Using the theory of nonlinear operators of monotone-type and the asymptotic analysis of a suitable perturbation of the original equation, we show the existence of a positive smooth solution.
Papageorgiou, Nikolaos S. +2 more
openaire +5 more sources
The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada
Population Ecology, EarlyView.We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley +1 more source
On the uniqueness of positive solution of an elliptic equation
Applied Mathematics Letters, 2005 Ministerio de Ciencia y ...
Delgado Delgado, Manuel +1 more
openaire +3 more sources
Network topology drives population temporal variability in experimental habitat networks
Population Ecology, EarlyView.Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu +3 more
wiley +1 more source
Enhancing smart readiness of buildings: bridging the knowledge gap to European citizens
International Journal of Sustainable EnergyThis study delves into the Smart Readiness Indicator (SRI), an innovative measure designed to assess and enhance the smart capabilities of buildings across Europe.
Afroditi Zamanidou +7 more
doaj +1 more source
Completely positive matrices and positivity of least squares solutions
Linear Algebra and its Applications, 1993 AbstractA sufficient condition for a doubly nonnegative matrix to be completely positive is given, in terms of the positivity of the least squares solution of a linear system associated to the matrix. Some known results on completely positive matrices are derived by this condition.
Paolo Zanardo, Luigi Salce
openaire +2 more sources
The dual nature of TDC – bridging dendritic and T cells in immunity
FEBS Letters, EarlyView.TDC are hematopoietic cells combining dendritic and T cell features. They reach secondary lymphoid organs (SLOs) and peripheral organs (liver and lungs) after FLT3‐dependent development in the bone marrow and maturation in the thymus. TDC are activated and enriched in SLOs upon viral infection, suggesting that they might play unique immune roles, since
Maria Nelli, Mirela Kuka
wiley +1 more source
Positive solutions for superdiffusive mixed problems
Applied Mathematics Letters, 2018 We study a semilinear parametric elliptic equation with superdiffusive reaction and mixed boundary conditions. Using variational methods, together with suitable truncation techniques, we prove a bifurcation-type theorem describing the nonexistence, existence and multiplicity of positive solutions.
Nikolaos S. Papageorgiou +3 more
openaire +3 more sources
FEBS Letters, EarlyView.In vivo IL‐10 produced by tissue‐resident tolDC is involved in maintaining/inducing tolerance. Depending on the agent used for ex vivo tolDC generation, cells acquire common features but prime T cells towards anergy, FOXP3+ Tregs, or Tr1 cells according to the levels of IL‐10 produced. Ex vivo‐induced tolDC were administered to patients to re‐establish/
Konstantina Morali +3 more
wiley +1 more source
EXISTENCE OF POSITIVE SOLUTIONS FOR AN ELASTIC CURVED BEAM EQUATION [PDF]
Scientific Bulletin of the ''Petru Maior" University of Tîrgu Mureș, 2017 This paper investigates the existence of positive solutions for a sixth-order differential equations. By using the Leggett-Williams fixed point theorem we give some new existence results.
Béla Kovacs
doaj